Showing posts with label food preservatives. Show all posts
Showing posts with label food preservatives. Show all posts

Wednesday, July 18, 2012

Natural Food Preservatives

 Food preservatives can be natural or man-made substances. Based on their actions, they are divided into three categories. They are antimicrobial preservatives, antioxidants, preservatives and other third class of preservative, enzymes for the food itself. Antimicrobial preservatives inhibit microbial growth, such as bacteria and fungi and antioxidant preservative to inhibit the oxidation of fats, lipids and other food ingredients. The third class of preservative to prevent the aging of natural maturity and post-harvest food. In addition to the use of preservatives, there are other healthy ways to preserve food, for example, such as drying, salting, smoking, pickling and freezing process can also be saved food.
Studies have shown that many chemical food additives contain harmful substances. Therefore, it is a better choice of naturally occurring food preservatives, non-toxic.
Food preservation is a long time storage of raw and cooked food using food preservatives. On the other hand, food packaging, to protect the food, and provide information on packaged foods. Food preservatives added to food substances, in order to prevent decomposition due to poor chemical change or microbial action. The main goal behind the use of food preservatives to maintain the appearance of food, texture, flavor, edible and nutritional value, and also to prevent food poisoning.
Natural preservatives for food protection
The natural food preservative substances, such as salt, sugar, rosemary extract and vinegar. Among them, the salt, sugar and vinegar as additives or preservatives, ingredients, rather than They have been used in the formula itself, so they are also known as traditional preservatives preservatives. Now, let us identify these preservatives.
Salt: Salt has been used as ancient times, especially meat, the use of natural food preservatives. The bacon can last for years. Behind to join the phenomenon of salt as a preservative, the micro-organisms through the process of reverse osmosis dehydration. Therefore, inhibition of bacterial cause of food spoilage. The salt also protects the food of yeasts and molds.
Vinegar: Vinegar is acidic, it is not considered harmful chemicals or preservatives, is often used as a natural food preservative. It is prepared by fermentation of sugar and water solution, beyond the alcohol stage. Today, many people prefer homemade vinegar for sale outside. Vinegar contains 4-5% concentration of acetic acid. It is the acetic acid to kill microbes, hinder the deterioration of food. There are different types of vinegar depends on the sugar base, have been made from them.
The form of sugar: sugar, organic complex carbohydrates, have been used as a natural food preservative in many foods. Sugar recreational food and inhibit microbial growth through the reverse osmosis phenomenon. The food can be stored in the form of syrup or crystalline food to be stored, sugar, cook until the crystallization point. Sugar to draw out the water, bacteria and other microorganisms, can kill bacteria or inhibit their growth in vivo.
Rosemary extracts: rosemary leaf extract, also known as rosemary oleoresin have been used as a natural food preservative, because for a long time. It has been used in traditional and pleasant aroma and flavor. Rosemary leaves distillation of rosemary extract preparation. As a powerful antioxidant that prevents the oxidation of food ingredients, so as to maintain the color and flavor of food. Due to its anti-oxidation characteristics of natural compounds such as phenolic diterpenes, sage, carnosic acid, rosmarinic acid exists.
Many synthetic food additives on the market. As far as possible to avoid these chemicals, many of which are incorrect testing for sale. Some believe that the safety of artificial preservatives. However, it is observed, they found a number of toxins and carcinogens. Therefore, to avoid the description of food preservatives, and like the only natural preservatives and properly certified chemical preservatives. It recommended that in accordance with food safety rules, processing, cooking and food preservation.
OTHER ARTICLE: Nisin As A Food Preservative 

Wednesday, June 20, 2012

Potassium Sorbate Dangers

There are preservatives in almost all the foodstuffs you put your fingers on in the store. One of them is potassium sorbate. Preservatives are always under speculation on how potentially grave they are. So, this article will tell you about potassium sorbate dangers… xEOL.
I wonder how lots of the things we eat in a day have food additives and preservatives. Needless to say, they would be present in almost 8 out of 10 items that we eat. Food preservatives are basically natural or synthetic chemicals substance that are added to foodstuff, to prevent its decomposition by undesirable chemical process and microbial interference. Potassium sorbate is one such food preservative. It is derived as a potassium salt of sorbic acid. While the molecular weight of this chemical is 150.22 g molecule, its scientific name is potassium (E, E) – hexa-2 ,4 – dienoate. In increase to food, it is used in various applications involving winemaking and personal care products. Here is some more selective information related to potassium sorbate for your perusal.
Potassium Sorbate Preservative
Potassium sorbate is would once curtail the product of candica and mold in numerous foodstuff. Cheese, yogurt, dried meats, apple cider are some of them. Another range of products which normally have potassium sorbate are herbal dietary supplements. Addition of potassium sorbate to foodstuff multiplies its shelf life. It can be fully digested, and is a polyunsaturated fat which is to be odorless, colorless, and tasteless. As a preservative, it can also replace sulfur dioxide, which has an aftertaste with the aid of sulfur dioxide.
Potassium sorbate is also used for off-dry (wines) to prevent yeast from re-fermenting post its bottling process. It inhibits the fermenting process, and thus, curbs the output of yeast. However, things considered, there are a few potassium sorbate side effects.
Potassium Sorbate Dangers
Dangers of food additives and preservatives notwithstanding, potassium sorbate, perhaps, falls into the category of food preservatives which are not seriously harmful for health. Basically, potassium sorbate is non-toxic and is regarded as safe. However, its synthetic device characteristic is not considered too favorable by some experts. Prolonged use of the preservative was able to lead to allergy, nausea, diarrhea and nutrient loss in food. Toxicity of potassium sorbate is akin to it of salt. In case of personal care products, sorbate or sorbic acids, can cause skin and eye irritation, so these people need to use carefully. All these facts point out that the side effects of potassium sorbate are minimal. But, if you want to avoid the usage of potassium sorbate, peculiarly in wines, and want to supplement it with something, there are invariably choices. Let’s see how its usage may be avoided or kept minimum.
Keeping off Potassium Sorbate Side Dangers
To avoid these side effects, sterile filtering can be done. But, a homemade wine is seldom possible minus the use of potassium sorbate. So, in that case, you can, foremost, use yeast which has low permissiveness to alcohol. Then, scuding the wine rigorously and using a fine filter for filtering the wine is the required steps. Another thing to think of is that guaranteeing that there is absolutely no yeast activity in the added sweet reserve, and store your wine in a cool and dry area. However, if even after all this you observe a spritz, have a wine agree and finish it off! That could be a mythic way to foreclose potassium sorbate dangers! Apart from wine, let’s say if you have to buy juice, buy fresh, organic juice as far as possible. Limiting canned goods from your diet is also a respectable way to avoid any side effects and overall high potassium levels in strawberry.
Eating sturdy and lifelike food as far as possible and in the first place, having minimum foodstuff which demand long shelf life, is at long last the best option. Thence, take care, eat the right way, and detain good for you!.